Could be a lot of things. It could be that he a sudden attack of honor and decided to come clean, giving up his dream job. It could be that he's using this as an excuse to get out a situation that he doesn't like, that he simply doesn't want to be the CIA director anymore for any number of reasons. It could be that someone threatened to spill the beans because his testimony in an investigation would not be favorable to them.

Thanks, your's and LVNHACK's input in the Benghazi threads have been invaluable since you've both been/being there done that. Same with my Bro.

Sounds like this wasn't expected but who knows. I guess we'll see how it plays out in the upcoming Benghazi hearings.